Good-stability multifunctional rock breaking device for geological exploration

The invention discloses a good-stability multifunctional rock breaking device for geological exploration and relates to the technical field of geological exploration. The device comprises a drill rod embedded in an output end of a motor, the other end of the drill rod is fixedly connected with a drill bit through a fixing bolt, an outer wall of an end, far away from the drill rod, of the motor is fixedly connected with a fixing disc, and an outer side wall of the drill rod is sequentially provided with a first annular groove and a second annular groove from an end close to the motor to the other end; a first ring groove is adjustably sleeved with a top ring, and a second ring groove is slidably sleeved with an adjusting ring; three spiral guide grooves are evenly distributed in the outer wall of the drill rod on the side, close to the drill bit, of the second ring groove in the circumferential direction, and linear guide grooves used for communicating the spiral guide grooves with the second ring groove are f